Mitsubishi Montero Sport (2004+). Manual - part 654

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-181

DTC 28 (P0705): Transmission Range Switch System (Short Circuit)

.

TRANSMISSION RANGE SWITCH SYSTEM 
CIRCUIT
Refer to 

P.23A-123

.

.

CIRCUIT OPERATION
Refer to 

P.23A-123

.

.

DESCRIPTIONS OF MONITOR METHODS
If two types or more of signals are input from trans-
mission range switch for more than 30 seconds, 
PCM judges that transmission range switch has a 
failure.

.

MONITOR EXECUTION
Continuous

.

MONITOR EXECUTION CONDITIONS (Other 
monitor and Sensor)

Other Monitor (There is no temporary DTC stored 

in memory for the item monitored below)

• Not applicable

Sensor (The sensor below is determined to be 

normal)

• Not applicable

.

LOGIC FLOW CHARTS (Monitor Sequence)

.

AC205064

START

Is there no
input signal?

Yes

No

Continuous failure
for 30 secs.

Yes

Yes

Yes

No

No

No

Continuous failure
for 30 secs.

Is there more than
one input signal?

Malfunction

Good

Malfunction

END

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-182

DTC SET CONDITIONS

Check Conditions, Judgement Criteria

• Transmission range switch: multiple signal. (30 

seconds)

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OBD-II DRIVE CYCLE PATTERN
Start the engine, keep the vehicle stopped in P, R, N, 
D, 3, 2 and L ranges respectively for more than one 
minute, and turn "LOCK" (OFF) the ignition switch. 
Then restart the engine, and stop the vehicle in P, R, 
N, D, 3, 2 and L ranges respectively for more than 
one minute.

.

TROUBLESHOOTING HINTS (The most likely 
causes for this code to be set are:)

• Malfunction of the transmission range switch

• Malfunction of the ignition switch

• Damaged harness, connector

• Malfunction of the PCM

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-183

DIAGNOSIS

Required Special Tool:

• MB991958: Scan Tool (MUT-III Sub Assembly)

• MB991824: V.C.I.

• MB991827: MUT-III USB Cable

• MB991911: MUT-III Main harness B

STEP 1. Check the transmission range switch.

Measure the resistance between the terminals for each trans-
mission range as indicated in the table below.

Q: Is the measured resistance less than 2 ohms for each 

transmission range?
YES : Go to Step 2.
NO :  Replace the transmission range switch. Refer to 

GROUP 23B, Transmission 

P.23B-19

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TRANSMISSION 
RANGE

TERMINAL 
CONNECTION OF 
TESTER

SPECIFIED 
CONDITION

P

1 

− 7

Less than 2 ohms

R

7 

− 8

N

2 

− 7

D

3 

− 7

3

4 

− 7

2

5 

− 7

L

6 

− 7

AC202393

4
9

5

10

3
8

2
7

6

1

CONNECTOR: B-01
<RWD>

<4WD>

B-01 (B)

B-01 (B)

AB

AC004076

P

R

N

D

3
2

L

AB

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-184

STEP 2. Check transmission range switch connector B-01 
for loose, corroded or damaged terminals, or terminals 
pushed back in the connector.

Q: Are the connector and terminals in good condition?

YES : Go to Step 3.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-2

.

STEP 3. Check PCM connector C-92 for loose, corroded or 
damaged terminals, or terminals pushed back in the 
connector.

Q: Are the connector and terminals in good condition?

YES : Go to Step 4.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-2

.

AC202393

4
9

5

10

3
8

2
7

6

1

CONNECTOR: B-01
<RWD>

<4WD>

B-01 (B)

B-01 (B)

AB

AC202317

PCM

120

107

119

106

129 130

118

105

117

114115116

126127128

104

111

103

112

108

101102

109110

121122123

124

113

125

CONNECTOR: C-92

C-92 (GR)

AB